md_restore

Purpose

The md_restore command restores disk groups from a metadata backup file.

Syntax and Description

md_restore  backup_file [--silent]
     [--full|--nodg|--newdg -o 'old_diskgroup:new_diskgroup [,...]']
     [-S sql_script_file] [-G 'diskgroup [,diskgroup...]']

Table 10-53 describes the options for the md_restore command.

Table 10-53 Options for the md_restore command

Option Description

backup_file

Reads the metadata information from backup_file.

--silent

Ignore errors. Typically, if md_restore encounters an error, it stops. Specifying this flag ignores any errors.

--full

Specifies to create a disk group and restore metadata.

--nodg

Specifies to restore metadata only.

--newdg -o old_diskgroup:new_diskgroup]

Specifies to create a disk group with a different name when restoring metadata. The -o option is required with --newdg.

-S sql_script_file

Write SQL commands to the specified SQL script file instead of executing the commands.

-G diskgroup

Select the disk groups to be restored. If no disk groups are defined, then all disk groups are restored.

Example

The first example restores the disk group data from the backup script and creates a copy. The second example takes an existing disk group data and restores its metadata. The third example restores disk group data completely but the new disk group that is created is named data2. The fourth example restores from the backup file after applying the overrides defined in the override.sql script file.

Example 10-62 Using the ASMCMD md_restore command

ASMCMD [+] > md_restore –-full –G data –-silent /scratch/backup/alldgs20100422

ASMCMD [+] > md_restore –-nodg –G data –-silent /scratch/backup/alldgs20100422

ASMCMD [+] > md_restore –-newdg -o 'data:data2' --silent /scratch/backup/data20100422

ASMCMD [+] > md_restore -S override.sql --silent /scratch/backup/data20100422